<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <title>动态生成下拉菜单</title>
</head>
<body>
    <div>
        请选择去哪玩:
        <select id="where">
            <option value="0">请选择</option>
        </select>
        <button id="btn">生成</button>
    </div>
    <script src="js/index.js"></script>
</body>
</html>